Fig. 3

Serum TGF-β1 levels in SSc cases and controls and the SSc subsets in 50 SSc cases & 30 healthy controls. (Analysed by t-test and one-way ANOVA; *P=<0.01; **P=<0.001; ***P=<0.0001, ns: non-significant, SSc: Systemic sclerosis, lcSSc: limited cutaneous Systemic sclerosis, dcSSc: diffuse cutaneous Systemic sclerosis)